Thus, fishing and hunting can drive evolutionary change. Fishing and hunting often removes large, reproductively mature individuals from species populations, which, in turn, can favor the survival of smaller individuals that can reproduce. Altering the life cycles and traits of organisms.Decreasing species ranges, and therefore altering species interactions.Fishing and hunting can also indirectly increase numbers of other species in an ecosystem if by removing a species there is less competition for resources and space among the remaining species in the ecosystem. If enough individuals are removed from an ecosystem, species can go extinct. Reducing species populations of the exploited species.Credit: Wikimediaįishing and hunting impact the Earth system in a variety of ways, including: A fishing boat in Alaska catching pollock.
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